John costello



(No Model.)

J. COSTELLO.

CUFF BUTTON.

No. 350,915. Patented Oct. 19,1886;

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UNTTE STATES PATENT OFFICE.

JOHN COSTELLO, OF ATTLEBOROUGH, MASS, ASSIGNOR OF ONE-HALF TQ CLARENCEL. \VATSON AND FRED A. NEVELL, BOTH OF SAME PLACE.

CUFF-BUTTON.

.JPECIFICATION forming part Of Letters Patent No. 350,915, dated Gotober19, 1886.

Application filed July 6. 1856. Serial No. 207,232.

To all whom it may concern:

Be it known that 1, JOHN (osTELLo, of Attleborough, in the county ofBristol and State of Massachusetts, have invented certain new and usefulImprovements in Detachable Buttons, and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

My invention relates to an improvement in detachable buttons, and moreparticularly in detachable buttons for cuffs, collars, sleeves, and thelike.

The object is to provide a device which may be conveniently manipulatedand firmly secured against displacement, and one which may bemanufactured at a small initial cost.

lVith these ends in View my invention consists in certain features ofconstruction and combinations of parts, as will be hereinafter fullydescribed, and pointed out in the claims.

In the accompanying drawings, Figure 1 is avertical longitudinal sectionwith one arm or hook-shaped member in its locked position and the otherin its unlocked position. Fig. 2 is a plan view of the back plate withits arms removed. Fig. 3 is a detached view of one of the arms. Fig. 4is a longitudinal vertical section of a modification with onehook-shaped member or arm elevated and the other depressed. Fig. 5 is aplan View of the back plate. Fig. 6 is a detached view of one of thearms. Fig. 7 is avertical longitudinal section of a.- second modifiedform. Fig.8 is a plan view with the arms removed, and Fig. 9 is adetached view of one of the arms.

A represents an ordinary back plate, on which the ornamental head ismounted in the usual man The back plate may be of any rm or material,and is provided with a pair of narrow elongated slots, B, located sideby side, and conveniently separated by a narrow partition, 0, formedintegral with the back plate, and preferably slightly countersunk. Thepartition 0 is provided at its opposite ends with outwardly-proj ectingarms a, which extend across the extreme ends of the slots B. The bars orpintles I), which transversely span the slots B, are preferably madeintegral (No model.)

with the back plate A and the partition 0, and are each located at oneside of the longitudinal center of the slot. A pair of spring-plates, D,(or only one may be used, if found sufficient,) are located over theslots, and are firmly secured in place between the plates of the cap.Between the springs and the bars or pintles I) the cams of thehook-shaped members or arms E are secured. The arms E are preferablybroadened and slightly curved at their free ends and terminate in a cam,d, at the hinged end. This cam consists of the portion 6, forming theflat face 0, aboutone-half the length of the free portion of the arm andapproximately at right angles thereto. It is also provided with a secondrectangular turn at point e, forming a re-entering angle, 0 thence itter minates in a goose-necked shoulder, c Thus the cam is provided withtwo straight faces, one of which is always in frictional contact orengagement with a spring-plate, D. When the arms are together or inextreme elevated adjustment, the face 6 is in engagement with thespring-plate, in which position it is firmly held by the tension of thesaid spring-plate. hen the arms are separated or in their lockedadjustment, the face c between angle 9 and shoulder e is in engagementwith the springplate, and the nose 6 furnishes a stop for rigidlyholding the arms at a convenient distance from the face-plate.

In the modification shown in Figs. 4, 5, and 6 the back plate, A,isconveniently setin a rim, F, and the entire surface of the back plateand partition between the two slots are in the same 8 5 plane. Thedifference between this construction and the one described, however, isin the termination of the cam end of the arm. In this case, instead ofterminating in a goosenecked shoulder and nose, the end (2 is turned 0slightly backward and approximately parallel to the face e of the arm.Thus it will readily be seen that although the arms are normall ydepressed by the frictional contact of the cam against the spring-plateD, yet they 9 5 are allowed to yield to a slight extent, and may bedepressed until their free ends impinge against the back plate, becauseof the absence of the nose 0. This slight yielding movement is oftenfound desirable, especially when the button is suddenly forced againstthe body, when by theslight yielding motion a bruise of the skin isoften prevented.

In the modification shown in Figs. 7, 8, and 9 the face e is slightlyelongated; but the principal difference between this form and the twoalready described is that a common pintle, I),

located in the midle of the back plate pivot.- ally secures both arms E.By this construction the arms open wider than the other two described.

It is evident that other slight changes might be resorted to in the formand arrangement of the several parts described without departing fromthe spirit and scope of my invention; hence I do not wish to limitmyself to the particular construction herein set forth; but,

Having fully described my invention, What I claim as new, and desire tosecure by Letters Patent, is-

1. In a detachable button, the combination, with a slotted back plate,the spring connected therewith, and the bars or pintles, of the armsloosely. mounted on said bars or pintles,

I ing witnesses.

and provided with hooked ends, each latter having a stop adapted toengage the backplate, for limiting the movement of the arm in onedirection, and two elongated flat faces which are engaged by the springto retain the arm in a locked or unlocked position, substantially as setforth.

- 2. In a detachable button, the combination, with the back plate havingparallel slot-s separated by a thin partition, the spring connected tothe back plate, and the bars or pintles located on opposite sides of thelongitudinal center of the back plate, with their inner ends resting onor integral with the partition separating the slots and spanning theirrespective slots, of the arms provided with hooked ends, substantiallyas set forth.

In testimony whereof I have signed this specification in the presence oftwo subscrib- JOHN COSTELLO.

Vitnesses:

ELIJAH R. READ,

GEo. A. ADAMS.

